[22 Feb 2013]
Production release 1.2.7 is now available.
This release fixes security issues in 1.2.6.

[07 Jan 2013]
Production release 1.2.6 is now available.
This release fixes minor bugs in 1.2.5.

[29 Feb 2012]
Production release 1.2.5 is now available.
This release fixes security issues and minor bugs in 1.2.4.

[08 Aug 2011]
Production release 1.2.4 is now available.
This fixes some minor bugs and security issues in 1.2.3.

[14 Aug 2010]
Production release 1.2.3 is now available.
This fixes some minor bugs in 1.2.1.

[09 Apr 2010]
Production release 1.2.1 is now available.
This fixes security vulnerabilities in versions 1.2.0.

[27 Sep 2008]
Release 1.2.0 is now available.

WebCalendar is a
PHP-based calendar application that can be configured
as a single-user calendar,
a multi-user calendar for groups of users,
or as an event calendar viewable by visitors.
MySQL, PostgreSQL, Oracle, DB2, Interbase, MS SQL Server, or ODBC is required.

WebCalendar can be setup in a variety of ways, such as...

A schedule management system for a single person

A schedule management system for a group of people,
allowing one or more assistants to manage the calendar
of another user

An events schedule that anyone can view, allowing visitors
to submit new events

A calendar server that can be viewed with iCalendar-compliant
calendar applications like
Mozilla Sunbird,
Apple iCal or
GNOME Evolution
or RSS-enabled applications like
Firefox, Thunderbird, RSSOwl, FeedDemon, or BlogExpress.

TIP:
If you are just getting started trying to get your event calendar online,
you can read the article Creating
an Online Event Calendar for an overview of different ways
you can do this. WebCalendar is obviously one way to accomplish this.